Apparatus for coating sheets of paper.



S, ELLIOTT.

APPARATUS FOR COATING SHEETS OF PAPER,

6 1 9 l 2 1 Is W s 6.] SH w t5 H nu t a D1 APPLICATION FILED DEC. 28. I914. yg u Di j s. E LLIOTT. APPARATUS FOR COATING SHEETS OF PAPER.

APPLICATION FILED DEC. 28, I914.

f ZZ- S. ELLIOTT.

APPARATUS FOR COATING-SHEETS OF PAPER.

APPLICATION FILED DEC. 28 1914.

Patented Sept. 12, 1916.

5 SHEETS-SHEET 3 S. ELLIOTT,

APPARATUS FOR COATING SHEETS OF PAPER.

APPLICATION FILED mac. 2a, 1914.

L1 95. Patentefi mt. 12,1916.

5 SHEETS-SHEET 4.

s ELLIOTT. I

APPARATUS FOR COATING SHEETS OF PAPER. APPLICATION FILED DEC. 28, I914.

Pafented Sept. 12,1916.

5 SHEETS-SHEET 5- i STERLING ELLIOTT, OF NEWTON, MASSACHUSETTS.

. I PARATUS non comma enters or rerun.

mamas;

f I Application filed December 28, 1914:. Serial No. 879,281.

To all whom it may concern:

.Be it known that I, STERLING ELLIOTT, a citizen of the United States, residing at Newton, in the'county of Middlesex and State of Massachusetts, have invented an Improvement in Apparatus for Coating Sheets of Paper,'of which the following is a specification.

In the manufacture of stencil-sheets for.

mimeograph work and'the like, it is customary to coat the paper with a waterproof composition or substance of some sort, This composition is in liquid form when applied to the sheets of paper and is subsequently solidified. It is very difioult to apply the composition in liquid form to, a sheet of paper, so that when solidified a layer of umform thickness extends over the entire sheet.

This invention has for its object a novel process of coating sheets. of paper with a liquid composition, which when solidlfied will form alayer of uniform thickness over the entire sheet; and the invention also involves the construction of apparatus especially adapted for carrying out my process in a convenient and expeditious manner.

My process consists in submerging the sheets of aper in a liquid coating com cs1- tion and t en drawing the sheets therefrom at a rate of speed corresponding approximately to, but preferably slower than the rate of flow of the liquid coating composition on the surfaces of the sheets, if such flow was ermitted, thereby to prevent the flowing 0 said li uid coating composition on the surfaces of the sheets. When the sheets are thus coated and the coating is allowed to dry, layers of uniform thitkness cover both surfaces'of the sheets.

The apparatus which may be employed for carrying out my invention comprises movable supporting-means for a plurality of sheets by which they are'held above a receptacle containing the liquid coating composition, and-means for lowering said supporting-means, thereby to submerge the sheets in the composition, movement of x which may be at any desired rate of speed,

and for subsequently raisingsaid supporting-means at a relatlvel slow rate of s 'eed.

The sheets are provi ed with detac able "hangers arranged for removable engagement with said. supporting-means by, which the sheets are suspended therefrom, and toinsure the sheets being held in fiat form,

weights are arrangedat their lower ends,

taining their spaced-apart relation.

which weights as well as the hangers are made co-extensive with the width of the sheets; and furthermore the weights and hangers are provided with laterally extended means arranged for engagement with corresponding laterally extended means on ad aCent' weights and hangers to prevent the sheets from touching each other even if they should swing to and fro.

he apparatus also embodies a temporary speciflcatiters-Patenti Patented septa 12, ll lifis support for a plurality of sheets, which is arranged in front of the supporting-means on *which the sheets are separately placed by hand, to correspond with marks on the sugport so that they will be spaced apart su oiently to prevent them from touching a each other. Said temporary support and said supporting-means are both so constructed as to admit of a sliding movement of the sheet-hangers thereon, so that the support onto the supporting-means;

-The apparatus also embodies movingmeans arranged to move a plurality of sheets from the temporary support onto sheets may be moved from the temporary the supporting-means, in spaced-apart rela-' still maintaining their spaced-apart relation thereby to vacate .a space sufficient to receive a plurality'of sheets from the supportingmeans. The carrier is made removable, so that it, together with the sheets carried by it, maybe taken from the apparatus and placed in 'a suitable rack, where the sheets are permitted to dry, the liquid coating composition thereon becoming SOlldI- fied. A large number of carriers are therefore used in connection with the apparatus.

- The apparatus alsoembodies power-driving means for the supportingmeans by which it is moved downward and upward, Q

and said driving-means. is arranged tomove sald supportmg-means downward at a fast rate of speed, and upward at a slow rate of its e evated position, in which position it is disengaged from'the sheets. .Thus the su porting-means can be moved only when the 'relativepositions of the elements associated wit-h each other are properly disposed. In

' gd'viewi of the fact that the movement of the supporting-means in a; downward direction may be as-rap'id as desired, the clutch-lever may be moved and held manually for the ac- .complishment'of this result, as. it requires but a short period of time,.but as it requires a long period of time for the-supportingmeans .to complete its upward movement, it

' is irk'som'e to hold the clutch-lever during such period, hence locking-means are provided for engaging the clutch-lever when moved into position to cause upward movement of the supporting-means, by which said lever is held during such period of time; and means arranged for actuation by the supmovement, are provided for restoring said IOOhIIIg-IIIBSLIIS to its normal or disengaging position-at such time.

I Figure 1 is a front elevation of an appa- .ratus for coating sheets ,ing this invention. Fig.

elevation-of the apparatus shown in Fig. 1,- :Fig. 3 is an enlarged plan view of the apparatus shown in Fig. 1. Fig. 4 is a front elevation of the means for conveying the sheets of paper from one to another part of the apparatus. Fig. 5 is'a transverse ver-- ticalsectio'n of the carrier. Fig. 6 is alon- -gitudina1 vertical section of the apparatus taken'through the receptacle containing the liquid coating composition. Figs. 7 and 8 are detail views of the means for raising and lowering the supporting-means for. the sheets. Figs. 9 and 10 are. detail views of one of the sheets with hanger and weight thereon. Figsyll and12 are detail views of controlling-means and locking-means for the clutch-lever. Fig. 13 is a detail-view of one of the normally flexed strips, which is 'arranged in the bars of the moving-means.

1 represents the receptacle which is intended to containthe liquid coating composition which is to be applied to'the sheets of paper. Itis of any suitable size and dimen- 1 sions, and has a chute 2, at one, end, arranged porting-means, when completing its upward of paper embody-' 2 is a left-handnear the top through which the coating composition is delivered to it; and has heatingmeans associated with it -for heating the coating composition. The heating-means here shown, see Fig. 2, consists of a set or coil of pipes 3, arranged in the receptacle, at the bottom, which is connected with a hot-water heating apparatus 4, which latter may be of any well known or suitable construction. The receptacle is or may be open at the top.

Supporting-means for a plurality of sheets of paper is arranged above the top of the receptacle and is" movable up and down, and upon. downward movement the sheets of paper are submerged in the coating composition contained in the receptacle and upon upward movement the sheets'are withdrawn. Said supporting-means, as here shown, consists of a rigidstructure comprising a pair of side-bars 5, 6, arranged horizontally and in parallel relation and spaced apart a distance corresponding to the width 0 the receptacle, and rigidly secured to the lower ends of upright braces 7, 8, 9, 10, which braces are attached at their upper ends to the end-portions of a horizontal cross-bar 12. The ends of said cross-bar 12 are fitted to slide in' vertical guideways formed in upright posts 13, 14, arranged on the main frame-work. Said side-bars 5, 6, have brackets 15, at each end, with outstanding ears 16, arranged in vertical planes, which ears are fitted to slide in vertical guideways formed in upright posts 17, there eing four such posts arranged at the four corners of the receptacle. Said side-bars 5, 6, each have plates arranged on their under sides, the edges of which extendbeyond the sides of the bars, to form rabbets to receive engaging-portions formed on hangers, which .are temporarily attached to the sheets and to permit of a sliding movement of said hangers and the sheetsborne by them along from end to end thereof.

. J Referring to Figs. 9 and 10, wherein one of the sheets of paper 20 is shown, a hanger is attached to its upper edge b which it is arranged for suspension on sai supportingmeans,'and a weight is attached to its lower 1 edge by which to hold the sheet taut. The hanger is arranged for detachable connection with the sheets, and, as here shown, consists of a pair of angle-bars 21, 21, made longer than the width of the sheet, so as to 1 extend throughout the width of the sheet and to project therefrom at each side, said projecting end-portions forming engagingportions which engage the side-bars 5, 6; and said angle-bars are made long enough to extend from one to the other side-bar 5, 6, so

. that it may be arranged with its engagin ortions in engagement-with both of said ars and thereby support the sheet between them. These angle-bars are arranged at opposite sides of the sheet with their corresponding fiat faces adjacent each other and in engagement with the sheet, and they are held in such position by detachable means here shown as nippers.

' 22 represents one of the nippers, of which there may be two or more, as may be required. The nippers may be of any weliknown spring-actuated type for easy manipulation, having their jaws arranged for engagement with the angle-bars, and by clasp- I ing said bars to hold them in engagement .to hold the upper end-portions of the sheets 7 free from contact with each other, thus preventing them from sticking together. On account of the tendency of the sheet to flex or curl, a weight is employed at' its lower end, which weight is also arranged to hold the lower edge of the sheet straight,

. so that the sheet will be held in flat form over all. As a simple form of weight which may be easily .and quickly applied by a ma-' chine, if desired, a sheet metal clip 23 is here shown, which is made as long as or longer than the width of the sheet, thereby to engage it throughout, its entire width. This clip consists-of a strip of sheet metal bent U- shaped to embrace the edge of the sheet and to admit of its being flattened for engagement with the sheet by pressure upon it throughout its length or at intervals as desired. This form of clip may be subsequently detached from the sheet easily and quickly, by securing it from the sheet. Said clip has cars 24, at or near each end, which extend laterally a short distance, which, when the sheets are suspended from the-supporting-means, will occupy positions to strike against the corresponding ears of adjacent clips, or it may be the clips themselves, in case the sheets should swing from their points of suspension, thereby preventing the sheets from touching each other and sticking together. It isof considerable importance that some means shall be employed to prevent the sheets from sticking together in case they should move or swing, and the laterally extended portions of the hanger, and the ears on the weight are efl'ective and easy to construct.

The sheets, when thus prepared, by the application thereto of the hangers and clips,-

are' ready to begplaced on the movable supporting-mean d,- her e gmeans are protilt vided for arranging them on ajstationary support, temporarily, which support 1s arranged in front of the-supporting-means, so

that a large number may be moved at one operation onto the movable supportingmeans, a number sufiicient to completely fill said movable supporting-means. Said stationary support, as here shown, consists of a pair of horizontally arranged bars 25, 26, arranged on the frame in front of the movable supporting-means and sodisposed with relation thereto that the supporting-means may be moved to bring its side-bars 5, 6,, into alining position therewith, and said stationary bars 25, 26, have rabbets on their adjacent faces to receive the engaging-portions of the hangers bearing the sheets, so that the sheets may, by a sliding movement, be conveyed from said stationary bars to the side-bars of the movable.supporting-means. In Fig. 3 one sheet only is represented as supported on the stationary bars for illustration.

To facilitate sliding the sheets from the stationary support to the side-bars of the movable supporting-means, the adjacent end-portions of the bars'may extend over each other, and upon referring to Fig. 3, the end-portions 18 on the side-bars of the supporting-means are here shown as having their top faces curved downward, thereby obviating a shoulder at the meeting points of the bars.

tacle 1, and may strike against said walls or adjustable stops thereon upon downward movement of the supporting-means, thereby to limit such movement. Means are herein provided for moving the sheets, reposing on the stationary support temporarily, as a set or series, into engagement with the movable supporting-means, and to regularly space apart the several sheets, and said means is also employed to move them from the supporting-means onto a. portable-carrier in spaced-apart relation, by which they may be taken from the machine. Said means, as here shown, comprises a pair of long slender bars 30, 31,'slidably supported intermediate their length and arranged in parallel relation at opposite sides of the machine. These bars are here shown as hollow and quadrilateral in cross-section, aiming to make them as stiff as possible; and to increase their The end-portions 18, extend. .over the tops of the end-walls of the recepends of the bars are rabbeted, so that the stiffness on account of said bars having a tendency" to sag at their ends when supported only intermediate their length, a brace-bar 32 is arranged within and extend ed throughout the length of each bar, which brace;bars are made with a decided curve throughout their length, as represented in Fig. 13, so that when driven into or arranged in the hollow-bars, they will have a tendency to resist the sagging tendency of arranged along their undersides a series ofdownwardly extended teeth or pins 38,- which are spaced apart, corresponding tothe distance it is proposed to space apart the sheets when suspended from the supporting-means. These bars 30, 31, which are moved longitudinally by rotation of the hand-crank 37, are also adapted to be moved up and down, in any position they may oc- Oupy, and to this end the frame which slidably supports said bars, is arranged for I movement up and down. Said frame comprises a horizontal transversely arranged cross-bar 40, having at each end a bar 41, arranged at right-angles thereto, and said bars 41, each bear blocks 42, at each end, in which said bars 30, 31, slide, and said frame has a vertical center-screw 43, rising from it which extends through an upright bearing 44',- on a frame-bar 45, which is arranged transversely with respect to the machine, and is secured at its ends to opposite sides thereof. Said screw has arranged on it a nut 46,, having a bevel-gear 47, fast to it, which rests on top of saidupright bearing '44, so that the-turning of said gear and nut causes said screw to move longitudinally up 85 or down according to the direction said gear is turned, with a corresponding up and down movement of the bearing-frame for the bars 30,31. Said bevel-gear is engaged by a bevel-gear 48, secured to a shaft 49,

having its bearing in the frame-bar 45, and

a hand-crank 50, is secured to said shaft for '3, until the left-hand occupy positions above the sheets re rotating it. When it is desired to move the bars 30, 31, longitudinally, the hand-crank 37, is rotated, and when it isdesired to raise or-lower said bars, the hand-crank 50, is ro-' tated. Assuming a set of sheets to boreposing temporarily on the stationary support preparatory to being moved vonto the I movable. supporting-means, and another set of sheets to be held by said supportingmeans, and it is desired to shift the sets of sheets, the bars 30, 31, will be raised high enough for their'pins 38 to escape the tops of the sheet-hangers, and then they will be moved in a direction toward the left, Fig. end-portions thereof osing on the temporary support; thensai -bars are lowered and the teeth 38 caused to enter the spaces between the sheets on said support andalso to enter the spaces between the sheets on the supporting-means; then said bars are moved in a direction toward the right and all of the sheets engaged by them will be moved along from the posisaid means in a tions they occupy,'those on the temporary support being moved onto thesupportingmeans, and those on the supporting-means being moved onto the portab -carrier; then said bars are raised to disenga e the sheets and thus caused to occupy t eir normal elevated positions.

The portable-carrier, here shown,-is a simple structure arranged on the machineframe comprising a pair of rabbeted sidebars 56, 56, arranged in parallel relation and spaced apart a distance corresponding to the distance between the side-bars of the supporting-means, and cross-bars'57, 57,, see Figs. 3 and 5, rigidly connected at their ends to said side-bars, thus forming a rigidr'structure. The side-bars of the machine-frame are arranged to receive and support said portable-carrier, and to hold it in fixed relation with the side-bars thereof, in alinement with the stationaryebars 25, 26, so that when the supportingmeans occupies a predetermined position with respect therecontain more than one set of sheets from the supporting-means, if desired, and is here shown as made long enough to hold-two sets,

'and in such case the shifting or movingmeans for the sheets will be arranged with downwardly extended pins to engage the first set of sheets which is moved-ontothe portable-carrier, and to move them along on the carrier to admit of another set being moved thereon from the supporting-means. Said-carrier. may be removed from the machinebysliding it endwise, and to revent such movement, when not require turnbuttons 58*or some equivalent means are provided which are arran don the end of the machine-frame and. adi usted to a osition to obstruct endwise movement 0 the carrier.

While the sheets are reposing on the movable supporting-means, said means is operated to lower the sheets into the receptacle 1, thereby submerging them in the coating substance or composition contained therein, and subsequently to raise them, and the means here; shown for thus moving said supporting-means is further arranged to move downward direction at a relatively fast rate of speed, and in an upward direction at a relativelyslow rate of speed. The means'here shown for accomplishing this resultwill now be described.

60 represents a cord which is attached at one end to an eye 61, arranged on the crossbar 12, and said cord passes over a pulley- 62, which is supported at the top of the frame above the cross-bar, and also over a trematpulley 63 supported on a bracket arranged on said frame and thence down and around a drum 64, which is connected with a reversible power-driving mechanism, by which said drum may be rotated in either direction at will. Said drum is secured to a shaft bearing a spur-gear 65, which engages a pinion 66, secured to a shaft bearing a spur-gear 67, which engages a pinion 68, secured. to a shaft bearing a spur-gear 69, which engages a pinion 70, secured to a shaft 71. Said shaft 71 has mounted on it two friction-clutches arranged respectively for forward and reverse drive.

75 represents one of the clutch-members which is splined on the shaft for sliding movement into and out of engagement with the friction-face of a pulley 76, which is loosely mounted on the shaft; and 77 re resents the other clutch-member which is l1kewise splined on the shaft 71, for sliding movement into and out of engagement with the friction-face of the pulley 78, likewise loosely mounted on the shaft. Slidably arranged on the shaft, between said clutchmembers, is the clutch-actuating means consisting, as here shown, of sliding-sleeves 80, 81, 82, arranged side by side, with the endmost members 80, 81, having their outer ends or faces provided with ball-bearings for engagement with the adjacent'ends of,

I the clutch-members 75 and 77, and the memher 82, which is arranged between said members 80 and 81, having a circumferential groove to receive inwardly extended pins on a yoke 84, secured to a pivot-shaft 85, and having an arm 86 extended from it, which is connected by a link 87, with an arm 88, secured to a shaft 89, to which shaft the clutch-operating lever 90, is secured. Move- -ment of said lever 90, in one direction, operates one of the clutch-members, and in the other direction operates the other clutchmember. The pulley 76, has arranged on it a belt-91, which passes around a pulley 92 on the shaft of an electric-motor 93, and the pulley ,7 8 has a cross-belt 94, which passes around a pulley 95, on the shaft of said mo- .tor. The pulley 78 when driven is designed to turn the shaft 71 in a direction to lower the supporting-means, and the pulley 76,

when driven, is designed to turn s'aid shaft- 71 in a direction to raise the supportingmeans, and by reference to Fig. 1, the driving-pulleys on the motor being of different diameter, causes the pulleys 76 and 78 to turn the shaft 71 ,respectively, at different rates of speed, so that the supporting-means may be lowered at a relatively fast rate of a speed and maybe raised at a relatively slow rate of speed. This enables the sheets to be quickly submerged in the coating compose tion and to be withdrawn from said composition slowl or at a speed approximately equal to or. ess than the flow .of the compolowermost position,

sition on the surfaces of the sheets, thereby preventing such flow, and resulting in a uniform coating being applied to the sheets.

When moving the clutch-lever 90 in a direction to operate the clutch and move the supporting-means for the sheets downward, it is quite necessary that themoving or shifting-means for the sheets shall be in its normal elevated position, otherwise said moving-means will not operate properly,

and there is liability of breakage of the parts, and herein controlling-means are provided for said clutch-lever by which it may be moved in such direction only when the moving-means is in'its elevated position. Furthermore, when moving the clutch-lever in the direction to operate the clutch to move the supporting-means for the sheets upward on account of such movement of the supporting-means being very slow, it is desirable to automatically lock the clutchlever in such position, so that. such slow movement may continue without the necessity of the operator holding the clutchlever, and that such locking-means shall be arranged to be operated to disengage the clutch-lever at the end of the upward movement of the supporting-means. Hence, locking-means are also provided for the clutch-lever arranged for operation in the manner set forth; Said controlling-means and locking-means for the clutch-lever are shown in detail in Figs. 11 and 12.

thereon, arranged to rest continually uponone of the side-bars of the moving means, so that said arm is moved on its plvot by the moving-means as the latter rises, and

falls, and said arm 96 has another BXlJHlSIOllpiece 98, which extends in a direction oppolarly formed end-portion, and said extension-piece 98 is movable-by the arm bearlng it, into and out of the path of movement of.

the clutch-lever 90, and at a particular part of said path, so that when in its lowermost site to'that of the arm 97, having an angu position, said clutch-lever will strike it, if i moved inwardlyduring the time it is in such but when in its elevated position, said lever 90 may be As the position of said arm 96, is controlled by' the moving-means it will be observed that it may be employed to control the movement of the clutch-lever in adirect on to operate the clutch to move the support, ing-means for the sheets in a downward direction.

As a a gravity latch-lever 100, is pivoted to an upright on the frame, the latch-formed end of which is adapted to engage a pm 101', projecting laterally from" the clutch-lever, when the clutch-lever is moved upward and moved freely.

locking-means for the clutch-lever,

7 into position to operate the clutch and to move the supporting-means for the sheets in an upward direction. Said latch-lever normally rests by'gravity on the pin 101, of the clutch-lever, with the pin at an intermediate point on the latch-lever remote from its latch-formed end-portion and" movement of the clutch-lever ispermitted as the pin 101, is free to movealong on the paper, w the combination of: a receptaclethe up-stroke of underside of said latch-lever, but when said clutch-lever is moved outward, its pin 101 will be ,moved' into engagement w1th the latch-lever and the clutch-lever will then be held. Saidlatch-lever has a rearward extension 102, which is arranged beneath-one end of a lever 103, pivoted at 104, and the other end of said lever 103, has a pin 105, extended laterally from it with or without a roll thereon, which is arranged in the path of 'movementof the supporting-means, as, for instance, one of the side-bars thereof, so

that when the supporting-means arrives at the upper end of its stroke, it will engage and lift said pin 105,'and thereby move the may bechanged without departing from the spirit and scope offmy invention; therefore, I desire itto be understood that the structure here shown is illustrative, and not restrictive.

1. In an apparatus for coating sheets of.

paper, the combination of a receptacle adapted to contain a liquid coatmg composition, movable supporting-means for a .plurality of sheets arranged above said receptacle, means to move said supportingmeans downward and u ward to submerge the sheets in and then wlthdraw them from said "coating composition, port adapted to receive upon it a plurality ofsheets, arranged in front of said movable and means for moving a from said-temporary sup-4;

supporting-means, plurality of sheets port onto the supportin -mea ns.

2. In-an apparatus or coating sheets of adapted tot-contain a liquide coating oomposltion, movable supporting-means for a plurality of sheets arranged above said receptacle means to move said" supportingj d ward to submerge means, ownwardand u A the sheets'in and then'iwithdraw them. from said coating composition, ajpair of stationary side-bars arranged'in parallel relation ralit port onto th a temporary supsaid coating composition, port adapted to receivejupon it a plurality in front of said movable supportin -means adapted to receive upon them a p urality of'sheets, and means to move a lurality of sheets from said side-bars onto t e supporting-means.

3. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, a pair of side-bars arranged horizontally above said receptacle in parallel relation and rigidly connected together, said bars adapted to receive upon them a pluof sheets, and means to move said rigi 1y connected bars downward and upward, a temporary support arranged in front of said side-bars adapted to receive a plurality of sheets, and means to move a plurality of sheets from said temporary support onto said side bars.

4. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, movable supporting-means for a plurality of sheets arrangedabove said receptacle, means to move said supportingmeans downward and upward to submerge the sheets in and then withdraw them from said coating composition, a temporary support adapted to receive upon it a plurahty of sheets, arranged in front bf said movable supporting-means, and meansfor moving a plurality of sheets from said temporary su v e supporting-means in space apart relation. F 1 v 5., In an apparatus for coatmg sheets of paper, the i combination of a receptacle adapted to contain a. liquid coating composition, movable supporting-means for a plurality ofsheets arrang'edabove said receptacle, means to move said supportingmeans downward and u ward to submerge the'sheets in andthen withdraw them from said coating composition, a temporary sup- .port adapted to receive upon it a plurality 'of sheets, arranged in front of said movable supporting-means, bars havmg downwardly extended pins regularly spaced apart, and

.means for moving said bars to engage a plurality of sheetson the temporary support and move them onto the movable supporting-means.

paper, the combination of;* a receptacle jadapted'to contain a 'liquid'coating com pos1tion,- 'movable supporting-means for a plurality-of sheets arranged above said receptacle, means to move said supportingmeans downward and u ward-to submerge the sheetsin and then withdraw them from a temporary supofsheets arranged in front of said movable supporting-means, bars having downwardly extended pins regularly spaced apart, a

frame slidably; supporting said bars, means 6. In an apparatus for 'coating sheets of I rality of sheets on the temporary support memes for movin' the bars with relation to the frame, an means for moving the frame, thereby to cause the bars to engage a pluand move them onto the movable supporting-means.

In an apparatus for coating sheets of a paper, the combination of a receptacle supporting-means, a portable carrier ar paper, the combination of a receptacle adapted to contain a liquid coating compo-. sition, movable supporting-means for a plumeans ranged in rear .of said supporting-means, and means formoving a plurality of sheets from said temporary support onto the movable supporting-means and for moving a plurality of sheets from the movable supporting-means onto the carrier. 7

8. In an apparatus for coating sheets of rality of sheets arranged above said receptacle means to move said supportingdownward and upward to-submerge the sheets in and then withdraw them from said coating composition, a temporary support adapted to receive upon a plurality of sheets, arranged in front of said movable supporting-means, a portable carrier arranged in rear of said movable supportingmeans, and means for moving a plurality of sheets from said temporary support onto the movable supporting-means and for moving a plurality of sheets from the movable supporting-means onto the carrier, and also for moving a plurality of sheets along on the carrier to vacate a space to receive a plurality of sheets from the ing-means.

9. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composit1on, movable supporting-means for a plurality of sheets arranged above said receptacle, means to move said supporting-means downward and upward to submerge the sheets in and then withdraw them from said coating composition, a temporary support adapted to receive upon it a plurality of sheets arranged in front of said movable suppprtmg-Ineans, means arranged in rear of sa1d movablesupporting-means to receive a plurality of sheets, and means for moving a plurality of sheets from saidtemporary support onto the movable supporting-means, and for moving a plurality of sheets from the movable supporting-means onto said means arranged inrear thereof.

movable support-v 10. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid composition,

movable supporting-means for a plurality of sheets arranged above said receptacle, means to move said supporting-means down-. ward and upward to submerge the sheets in and then withdraw. them from said coating composition, a temporary support adapted to receive upon it a plurality of sheets arranged in front of said movable supporting-means, means arranged in rear of said movable supporting-means to receive a plurality of sheets, and means for moving a plurality of sheets from said temporary support onto the movable supporting-means, and for moving a plurality of sheets from the movable supporting-means onto said means arranged in rear thereof, and for moving a plurality of sheets along on said means in rear of the movable supportingmeans to vacate a space to receive a plurality of sheets from the movable supportingrmeans. a

11. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, movable supporting-means for a plurality of sheets arranged above said receptacle, means to move said supporting-means downward and upward to submerge the sheets in and then withdraw them from said coating composition, means arranged in rear of said movable supporting-means to receive a plurality of sheets, and means to move a plurality of sheets from the movable supporting-means onto said means arranged in rear thereof.

12. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, movable supporting-means for a plurality of sheets, arranged above saidre- 7 ceptable, means to move said supportingmeans downward and upward to submerge the sheets in and then withdraw them from said coating composition, means arranged in rear of sa1d movable supporting-means to receive a plurality of sheets, and means to move a plurality of sheets from the movable supporting-means onto said means, and to move a plurality of sheets along on said means to vacate a space to receive a plurality of sheets from the movable supporting-means in .rear thereof.

13. In an apparatus for coating sheets of 'paper, the combination of a receptacle adapted to contain a liquid coating composition, movable supporting-means for a plurality of sheets arranged above saidrec eptacle, means to move said supportingmeans downward and upward to submerge the sheets in and then withdraw them from said coatm composition, a portable-carrier arrange in rear of said movable supporting means to receive a plurality of sheets, and

In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coatin composition, movable supporting-means or a plurality of sheets arranged above said receptacle, means to move said supporting-means downward and upward to submerge the sheets in and then withdraw them from' said coating composition, a portable-carrier arranged in rear of said movable support: ,lng-means to receive a plurality of sheets,

' said carrier,

and means to move a plurality of sheets from the movable supporting-means onto and to move a plurality of sheets along on said carrier to vacate a space to receive a plurality of sheets from the movable supporting-means.

15. In an apparatus for coating sheets of 1 paper, the'combination of a receptacle adaptto-contain a liquid coating composition,

: npovablesupporting-means for a plurality Sheets arranged above' said receptacle,

' means to move said supporting-means downward and upward to submerge the sheets in andthen withdraw them from said coatin of sheets arranged, v means'to movesaid supporting-means downcomposition,

-' I "plurality of at a temporary support adapte to receive upon it a' plurality of sheets arranged m front of said supporting-means,

7 a portable-carrier arranged in rearof said supporting-means, and means for moving a sheets from said temporary sup port onto the supporting-means in spacedapart-relation, of sheets from the carrier in and for moving a plurality the supporting-means onto spaced-apart relation.

16. In an apparatus for coating sheets of paper, the combinationof a receptacle adapted to contain a liquid coating composition,

movable supporting-means for a plurality above said receptacle,

ward and upward to submerge the sheets in and then withdraw them from said coating composition, a temporary support adapted to receive upon it a plurality of'sheets arranged in front of said supporting-means, a

' supportin'g means,

. of, sheets from the carrier in-spaced-apart relatlon, and for moving said sheets portablemarrier arranged in rear of said and means for; moving a plurality of sheets from said temporary supportonto the supporting-means in spacedapart relation, and for moving a plurality the supporting-means onto along on the carrierfin spaced-apart relation. j

In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, movable supporting-means for a plurality of sheets arranged above saidjreceptacle, means to move said supportmg-means down ward and upward to-submerge-the sheets in and then withdraw them from the coating composition, a temporary support adapted to receive upon it a plurality of sheets arranged in front of said supporting-means, means arranged in rear of said supportingmeans to receive a plurality of sheets, and means for moving a plurality of sheets from said temporary support onto the supportingmeans in spaced-apart relation, and for moving a plurality of sheets from the supporting-means onto said means in rear thereof in spaced-apart relation.

18. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, movable supporting-means for a plurality of sheets arranged above said receptacle, means to move said supporting-means downward and upward to submerge the sheets in and then withdraw them from said coating composition, a temporary support adapted to receive upon it a plurality of sheets arranged in front of said supporting-means, means arranged in rear of said supportingmeans to receive a plurality of sheets, and means for moving a plurality of sheets from said temporary support onto the supportingmeans in spaced-apart relation, and for moving a plurality of sheets from the supporting-means onto said means in rear thereof in spaced-apart relation, and for moving the plurality of sheets along\on saidmeans in rear of the supporting-means in spacedapart relation to vacate a space to receive a plurality of sheets from the supportingmeans.

19. In an apparatus for coating sheets ofpaper, the combination of a receptacle adapted to contain a liquid coating composition,

movable supporting-means for a plurality of sheets arranged above said receptacle,

means to move said supporting-means downward and upward to submerge the sheets in paper, the combination of a receptacle adapted to contain a liquid coating composition, movable supporting-means for a plurallty of sheets j arranged above said receptacle, means to move said supporting-means downward and u ward to submerge the sheets in and then wlthdraw them from said coating composition, means arranged in rear of said supporting-means to receive a plurality of sheets, and means to move a plurality of sheetsfrom the supporting-means onto said means in rear thereof in spaced-apart relation, and to move a plurality of sheets along on said -means in rear thereof in spacedapart relation tovacate a'space to receive I a plurality of sheets from the supportingsheets in and then withdraw them from said coating composition, a portable-carrier arranged in rear of said supporting-means to receive a plurality of sheets, and means to move a plurality of sheets from the supporting-means onto said carrier in spaced-apart relation.

22. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, movable supporting-means for a plurality of sheets arranged above said recep tacle, means to move said supporting-means downward and upward to submerge the sheets in and then withdraw them from said coating composition, a portable-carrier arranged in rear of said supporting-means to receive a plurality of sheets, and means to move a plurality of sheets from the supporting-means onto said carrier in spaced-apart relation, and to move a pluralltyof sheets along on said carrler, to vacate a space to receive a plurality of sheets from the supporting-means.

23. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, supporting-means for a plurality of sheets, means to hold said supporting means above said receptacle which admits of a downward -and upward movement thereof, power-driving means for the supporting-means having a control-lever, locking-means for said control-lever arranged to automatically lock said lever in one position, and to be moved by the supportingsmeans when arriving at the upper end of its stroke into another position to disengage the supporting-means.

24. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composi tion, supporting-means for a plurality of sheets, means to hold said supporting-means above said receptacle which admits of a downward and upward movement thereof, power-driving means for the supportingmeans having a control-lever, a latch-lever arranged to move by gravity to disengage said control-lever and lock it in one position, and means operated by the supportingmeans-when arriving at the upper end of its stroke for lifting said latch-lever to disengage said control-lever.

25. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating composition, supporting-means for a plurality of sheets, means to hold said supporting-means above said receptacle which admits of a downward and" upward movementthereof,

power-driving {means for the supportingmeans having control-lever, arranged to move said supporting-means in a downward direction at a rapid rate of speed, and to move it upward at a slow rate of speed, and

locking-means for said control-lever arranged to engage it when in one position and arranged to be operated by the supporting-means when the latter arrives at the upper end of its stroke to disengage said control-lever.

26. In an apparatus for coating sheets of paper, the combination of a receptacle adapted to contain a liquid coating compo sition,- supporting-means for a plurality of sheets, means to hold said supporting-means ,above said receptacle which admits of a downward and upward movement thereof, reversing power-driving means'forsaid-supporting-means having a reversing-lever, and locking-means arranged to engage said lever when in one position and to be disengaged therefrom by the supporting-means when the latter arrives at the upper end of its stroke.

27. In an apparatus for coating sheets of paper, the combination I of a receptacle adapted to contain a liquid coating composition, supporting-means for a plurality of sheets, means to hold said supporting-means above said receptacle which admits of a downward and upward movement thereof,

them 1n engaging-position ion the sheet.

29. A detachable weight for the lower end of a sheet of aper consisting of a strip bent to embraceth ing lateral projections.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

STERLING E]LLI()I"I.v Witnesses:

B. J. NoYEs, H. B. DAVIS.

e edge of the sheet and hav- 

